mirror of https://github.com/inclusionAI/AReaL
613 lines
24 KiB
HTML
Executable File
613 lines
24 KiB
HTML
Executable File
|
||
<!DOCTYPE html>
|
||
|
||
|
||
<html lang="en" data-content_root="../" >
|
||
|
||
<head>
|
||
<meta charset="utf-8" />
|
||
<meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
|
||
|
||
<title>Allocation & Parallelism — AReaL Documentation</title>
|
||
|
||
|
||
|
||
<script data-cfasync="false">
|
||
document.documentElement.dataset.mode = localStorage.getItem("mode") || "";
|
||
document.documentElement.dataset.theme = localStorage.getItem("theme") || "";
|
||
</script>
|
||
|
||
<!-- Loaded before other Sphinx assets -->
|
||
<link href="../_static/styles/theme.css?digest=dfe6caa3a7d634c4db9b" rel="stylesheet" />
|
||
<link href="../_static/styles/bootstrap.css?digest=dfe6caa3a7d634c4db9b" rel="stylesheet" />
|
||
<link href="../_static/styles/pydata-sphinx-theme.css?digest=dfe6caa3a7d634c4db9b" rel="stylesheet" />
|
||
|
||
|
||
<link href="../_static/vendor/fontawesome/6.5.2/css/all.min.css?digest=dfe6caa3a7d634c4db9b" rel="stylesheet" />
|
||
<link rel="preload" as="font" type="font/woff2" crossorigin href="../_static/vendor/fontawesome/6.5.2/webfonts/fa-solid-900.woff2" />
|
||
<link rel="preload" as="font" type="font/woff2" crossorigin href="../_static/vendor/fontawesome/6.5.2/webfonts/fa-brands-400.woff2" />
|
||
<link rel="preload" as="font" type="font/woff2" crossorigin href="../_static/vendor/fontawesome/6.5.2/webfonts/fa-regular-400.woff2" />
|
||
|
||
<link rel="stylesheet" type="text/css" href="../_static/pygments.css?v=fa44fd50" />
|
||
<link rel="stylesheet" type="text/css" href="../_static/styles/sphinx-book-theme.css?v=eba8b062" />
|
||
<link rel="stylesheet" type="text/css" href="../_static/togglebutton.css?v=13237357" />
|
||
<link rel="stylesheet" type="text/css" href="../_static/copybutton.css?v=76b2166b" />
|
||
<link rel="stylesheet" type="text/css" href="../_static/mystnb.4510f1fc1dee50b3e5859aac5469c37c29e427902b24a333a5f9fcb2f0b3ac41.css?v=be8a1c11" />
|
||
<link rel="stylesheet" type="text/css" href="../_static/sphinx-thebe.css?v=4fa983c6" />
|
||
<link rel="stylesheet" type="text/css" href="../_static/sphinx-design.min.css?v=95c83b7e" />
|
||
|
||
<!-- Pre-loaded scripts that we'll load fully later -->
|
||
<link rel="preload" as="script" href="../_static/scripts/bootstrap.js?digest=dfe6caa3a7d634c4db9b" />
|
||
<link rel="preload" as="script" href="../_static/scripts/pydata-sphinx-theme.js?digest=dfe6caa3a7d634c4db9b" />
|
||
<script src="../_static/vendor/fontawesome/6.5.2/js/all.min.js?digest=dfe6caa3a7d634c4db9b"></script>
|
||
|
||
<script src="../_static/documentation_options.js?v=9eb32ce0"></script>
|
||
<script src="../_static/doctools.js?v=9a2dae69"></script>
|
||
<script src="../_static/sphinx_highlight.js?v=dc90522c"></script>
|
||
<script src="../_static/clipboard.min.js?v=a7894cd8"></script>
|
||
<script src="../_static/copybutton.js?v=f281be69"></script>
|
||
<script src="../_static/scripts/sphinx-book-theme.js?v=887ef09a"></script>
|
||
<script>let toggleHintShow = 'Click to show';</script>
|
||
<script>let toggleHintHide = 'Click to hide';</script>
|
||
<script>let toggleOpenOnPrint = 'true';</script>
|
||
<script src="../_static/togglebutton.js?v=4a39c7ea"></script>
|
||
<script>var togglebuttonSelector = '.toggle, .admonition.dropdown';</script>
|
||
<script src="../_static/design-tabs.js?v=f930bc37"></script>
|
||
<script>const THEBE_JS_URL = "https://unpkg.com/thebe@0.8.2/lib/index.js"; const thebe_selector = ".thebe,.cell"; const thebe_selector_input = "pre"; const thebe_selector_output = ".output, .cell_output"</script>
|
||
<script async="async" src="../_static/sphinx-thebe.js?v=c100c467"></script>
|
||
<script>var togglebuttonSelector = '.toggle, .admonition.dropdown';</script>
|
||
<script>const THEBE_JS_URL = "https://unpkg.com/thebe@0.8.2/lib/index.js"; const thebe_selector = ".thebe,.cell"; const thebe_selector_input = "pre"; const thebe_selector_output = ".output, .cell_output"</script>
|
||
<script>DOCUMENTATION_OPTIONS.pagename = 'developer/allocation_parallel';</script>
|
||
<link rel="index" title="Index" href="../genindex.html" />
|
||
<link rel="search" title="Search" href="../search.html" />
|
||
<link rel="next" title="Contribution Guide" href="../contrib.html" />
|
||
<link rel="prev" title="Algorithm, Interface & Backends" href="algo_interface.html" />
|
||
<meta name="viewport" content="width=device-width, initial-scale=1"/>
|
||
<meta name="docsearch:language" content="en"/>
|
||
</head>
|
||
|
||
|
||
<body data-bs-spy="scroll" data-bs-target=".bd-toc-nav" data-offset="180" data-bs-root-margin="0px 0px -60%" data-default-mode="">
|
||
|
||
|
||
|
||
<div id="pst-skip-link" class="skip-link d-print-none"><a href="#main-content">Skip to main content</a></div>
|
||
|
||
<div id="pst-scroll-pixel-helper"></div>
|
||
|
||
<button type="button" class="btn rounded-pill" id="pst-back-to-top">
|
||
<i class="fa-solid fa-arrow-up"></i>Back to top</button>
|
||
|
||
|
||
<input type="checkbox"
|
||
class="sidebar-toggle"
|
||
id="pst-primary-sidebar-checkbox"/>
|
||
<label class="overlay overlay-primary" for="pst-primary-sidebar-checkbox"></label>
|
||
|
||
<input type="checkbox"
|
||
class="sidebar-toggle"
|
||
id="pst-secondary-sidebar-checkbox"/>
|
||
<label class="overlay overlay-secondary" for="pst-secondary-sidebar-checkbox"></label>
|
||
|
||
<div class="search-button__wrapper">
|
||
<div class="search-button__overlay"></div>
|
||
<div class="search-button__search-container">
|
||
<form class="bd-search d-flex align-items-center"
|
||
action="../search.html"
|
||
method="get">
|
||
<i class="fa-solid fa-magnifying-glass"></i>
|
||
<input type="search"
|
||
class="form-control"
|
||
name="q"
|
||
id="search-input"
|
||
placeholder="Search this book..."
|
||
aria-label="Search this book..."
|
||
autocomplete="off"
|
||
autocorrect="off"
|
||
autocapitalize="off"
|
||
spellcheck="false"/>
|
||
<span class="search-button__kbd-shortcut"><kbd class="kbd-shortcut__modifier">Ctrl</kbd>+<kbd>K</kbd></span>
|
||
</form></div>
|
||
</div>
|
||
|
||
<div class="pst-async-banner-revealer d-none">
|
||
<aside id="bd-header-version-warning" class="d-none d-print-none" aria-label="Version warning"></aside>
|
||
</div>
|
||
|
||
|
||
<header class="bd-header navbar navbar-expand-lg bd-navbar d-print-none">
|
||
</header>
|
||
|
||
|
||
<div class="bd-container">
|
||
<div class="bd-container__inner bd-page-width">
|
||
|
||
|
||
|
||
<div class="bd-sidebar-primary bd-sidebar">
|
||
|
||
|
||
|
||
<div class="sidebar-header-items sidebar-primary__section">
|
||
|
||
|
||
|
||
|
||
</div>
|
||
|
||
<div class="sidebar-primary-items__start sidebar-primary__section">
|
||
<div class="sidebar-primary-item">
|
||
|
||
|
||
|
||
|
||
|
||
<a class="navbar-brand logo" href="../intro.html">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<img src="../_static/logo.png" class="logo__image only-light" alt="AReaL Documentation - Home"/>
|
||
<script>document.write(`<img src="../_static/logo.png" class="logo__image only-dark" alt="AReaL Documentation - Home"/>`);</script>
|
||
|
||
|
||
</a></div>
|
||
<div class="sidebar-primary-item">
|
||
|
||
<script>
|
||
document.write(`
|
||
<button class="btn search-button-field search-button__button" title="Search" aria-label="Search" data-bs-placement="bottom" data-bs-toggle="tooltip">
|
||
<i class="fa-solid fa-magnifying-glass"></i>
|
||
<span class="search-button__default-text">Search</span>
|
||
<span class="search-button__kbd-shortcut"><kbd class="kbd-shortcut__modifier">Ctrl</kbd>+<kbd class="kbd-shortcut__modifier">K</kbd></span>
|
||
</button>
|
||
`);
|
||
</script></div>
|
||
<div class="sidebar-primary-item"><nav class="bd-links bd-docs-nav" aria-label="Main">
|
||
<div class="bd-toc-item navbar-nav active">
|
||
|
||
<ul class="nav bd-sidenav bd-sidenav__home-link">
|
||
<li class="toctree-l1">
|
||
<a class="reference internal" href="../intro.html">
|
||
Overview
|
||
</a>
|
||
</li>
|
||
</ul>
|
||
<p aria-level="2" class="caption" role="heading"><span class="caption-text">Tutorial</span></p>
|
||
<ul class="nav bd-sidenav">
|
||
<li class="toctree-l1"><a class="reference internal" href="../installation.html">Installation</a></li>
|
||
<li class="toctree-l1"><a class="reference internal" href="../training.html">Training</a></li>
|
||
<li class="toctree-l1"><a class="reference internal" href="../eval.html">Evaluation</a></li>
|
||
<li class="toctree-l1"><a class="reference internal" href="../troubleshooting.html">Troubleshooting</a></li>
|
||
</ul>
|
||
<p aria-level="2" class="caption" role="heading"><span class="caption-text">Developer Manual</span></p>
|
||
<ul class="current nav bd-sidenav">
|
||
<li class="toctree-l1"><a class="reference internal" href="exp_launch.html">Launching Procedure</a></li>
|
||
<li class="toctree-l1"><a class="reference internal" href="master_worker.html">Master Worker</a></li>
|
||
<li class="toctree-l1"><a class="reference internal" href="model_worker.html">Model Worker</a></li>
|
||
<li class="toctree-l1"><a class="reference internal" href="algo_interface.html">Algorithm, Interface & Backends</a></li>
|
||
<li class="toctree-l1 current active"><a class="current reference internal" href="#">Allocation & Parallelism</a></li>
|
||
</ul>
|
||
<p aria-level="2" class="caption" role="heading"><span class="caption-text">Contributing</span></p>
|
||
<ul class="nav bd-sidenav">
|
||
<li class="toctree-l1"><a class="reference internal" href="../contrib.html">Contribution Guide</a></li>
|
||
</ul>
|
||
|
||
</div>
|
||
</nav></div>
|
||
</div>
|
||
|
||
|
||
<div class="sidebar-primary-items__end sidebar-primary__section">
|
||
</div>
|
||
|
||
<div id="rtd-footer-container"></div>
|
||
|
||
|
||
</div>
|
||
|
||
<main id="main-content" class="bd-main" role="main">
|
||
|
||
|
||
|
||
<div class="sbt-scroll-pixel-helper"></div>
|
||
|
||
<div class="bd-content">
|
||
<div class="bd-article-container">
|
||
|
||
<div class="bd-header-article d-print-none">
|
||
<div class="header-article-items header-article__inner">
|
||
|
||
<div class="header-article-items__start">
|
||
|
||
<div class="header-article-item"><button class="sidebar-toggle primary-toggle btn btn-sm" title="Toggle primary sidebar" data-bs-placement="bottom" data-bs-toggle="tooltip">
|
||
<span class="fa-solid fa-bars"></span>
|
||
</button></div>
|
||
|
||
</div>
|
||
|
||
|
||
<div class="header-article-items__end">
|
||
|
||
<div class="header-article-item">
|
||
|
||
<div class="article-header-buttons">
|
||
|
||
|
||
|
||
|
||
|
||
<div class="dropdown dropdown-source-buttons">
|
||
<button class="btn dropdown-toggle" type="button" data-bs-toggle="dropdown" aria-expanded="false" aria-label="Source repositories">
|
||
<i class="fab fa-github"></i>
|
||
</button>
|
||
<ul class="dropdown-menu">
|
||
|
||
|
||
|
||
<li><a href="https://github.com/inclusionAI/AReaL" target="_blank"
|
||
class="btn btn-sm btn-source-repository-button dropdown-item"
|
||
title="Source repository"
|
||
data-bs-placement="left" data-bs-toggle="tooltip"
|
||
>
|
||
|
||
|
||
<span class="btn__icon-container">
|
||
<i class="fab fa-github"></i>
|
||
</span>
|
||
<span class="btn__text-container">Repository</span>
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
<li><a href="https://github.com/inclusionAI/AReaL/issues/new?title=Issue%20on%20page%20%2Fdeveloper/allocation_parallel.html&body=Your%20issue%20content%20here." target="_blank"
|
||
class="btn btn-sm btn-source-issues-button dropdown-item"
|
||
title="Open an issue"
|
||
data-bs-placement="left" data-bs-toggle="tooltip"
|
||
>
|
||
|
||
|
||
<span class="btn__icon-container">
|
||
<i class="fas fa-lightbulb"></i>
|
||
</span>
|
||
<span class="btn__text-container">Open issue</span>
|
||
</a>
|
||
</li>
|
||
|
||
</ul>
|
||
</div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<div class="dropdown dropdown-download-buttons">
|
||
<button class="btn dropdown-toggle" type="button" data-bs-toggle="dropdown" aria-expanded="false" aria-label="Download this page">
|
||
<i class="fas fa-download"></i>
|
||
</button>
|
||
<ul class="dropdown-menu">
|
||
|
||
|
||
|
||
<li><a href="../_sources/developer/allocation_parallel.md" target="_blank"
|
||
class="btn btn-sm btn-download-source-button dropdown-item"
|
||
title="Download source file"
|
||
data-bs-placement="left" data-bs-toggle="tooltip"
|
||
>
|
||
|
||
|
||
<span class="btn__icon-container">
|
||
<i class="fas fa-file"></i>
|
||
</span>
|
||
<span class="btn__text-container">.md</span>
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
<li>
|
||
<button onclick="window.print()"
|
||
class="btn btn-sm btn-download-pdf-button dropdown-item"
|
||
title="Print to PDF"
|
||
data-bs-placement="left" data-bs-toggle="tooltip"
|
||
>
|
||
|
||
|
||
<span class="btn__icon-container">
|
||
<i class="fas fa-file-pdf"></i>
|
||
</span>
|
||
<span class="btn__text-container">.pdf</span>
|
||
</button>
|
||
</li>
|
||
|
||
</ul>
|
||
</div>
|
||
|
||
|
||
|
||
|
||
<button onclick="toggleFullScreen()"
|
||
class="btn btn-sm btn-fullscreen-button"
|
||
title="Fullscreen mode"
|
||
data-bs-placement="bottom" data-bs-toggle="tooltip"
|
||
>
|
||
|
||
|
||
<span class="btn__icon-container">
|
||
<i class="fas fa-expand"></i>
|
||
</span>
|
||
|
||
</button>
|
||
|
||
|
||
|
||
<script>
|
||
document.write(`
|
||
<button class="btn btn-sm nav-link pst-navbar-icon theme-switch-button" title="light/dark" aria-label="light/dark" data-bs-placement="bottom" data-bs-toggle="tooltip">
|
||
<i class="theme-switch fa-solid fa-sun fa-lg" data-mode="light"></i>
|
||
<i class="theme-switch fa-solid fa-moon fa-lg" data-mode="dark"></i>
|
||
<i class="theme-switch fa-solid fa-circle-half-stroke fa-lg" data-mode="auto"></i>
|
||
</button>
|
||
`);
|
||
</script>
|
||
|
||
|
||
<script>
|
||
document.write(`
|
||
<button class="btn btn-sm pst-navbar-icon search-button search-button__button" title="Search" aria-label="Search" data-bs-placement="bottom" data-bs-toggle="tooltip">
|
||
<i class="fa-solid fa-magnifying-glass fa-lg"></i>
|
||
</button>
|
||
`);
|
||
</script>
|
||
<button class="sidebar-toggle secondary-toggle btn btn-sm" title="Toggle secondary sidebar" data-bs-placement="bottom" data-bs-toggle="tooltip">
|
||
<span class="fa-solid fa-list"></span>
|
||
</button>
|
||
</div></div>
|
||
|
||
</div>
|
||
|
||
</div>
|
||
</div>
|
||
|
||
|
||
|
||
<div id="jb-print-docs-body" class="onlyprint">
|
||
<h1>Allocation & Parallelism</h1>
|
||
<!-- Table of contents -->
|
||
<div id="print-main-content">
|
||
<div id="jb-print-toc">
|
||
|
||
<div>
|
||
<h2> Contents </h2>
|
||
</div>
|
||
<nav aria-label="Page">
|
||
<ul class="visible nav section-nav flex-column">
|
||
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#gpu-allocation">GPU Allocation</a></li>
|
||
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#parallelism-strategies">Parallelism Strategies</a><ul class="nav section-nav flex-column">
|
||
<li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#training">Training</a></li>
|
||
<li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#inference">Inference</a></li>
|
||
<li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#parameter-partitioning">Parameter Partitioning</a></li>
|
||
</ul>
|
||
</li>
|
||
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#torch-nccl-communication-groups">Torch NCCL Communication Groups</a></li>
|
||
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#parallelism-ranks">Parallelism Ranks</a></li>
|
||
</ul>
|
||
</nav>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
|
||
<div id="searchbox"></div>
|
||
<article class="bd-article">
|
||
|
||
<section class="tex2jax_ignore mathjax_ignore" id="allocation-parallelism">
|
||
<h1>Allocation & Parallelism<a class="headerlink" href="#allocation-parallelism" title="Link to this heading">#</a></h1>
|
||
<section id="gpu-allocation">
|
||
<h2>GPU Allocation<a class="headerlink" href="#gpu-allocation" title="Link to this heading">#</a></h2>
|
||
<p>GPU allocation is controlled by the <code class="docutils literal notranslate"><span class="pre">allocation_mode</span></code> CLI parameter. The most common pattern looks like <code class="docutils literal notranslate"><span class="pre">"sglang.d2t2p1+d1t4p1"</span></code>, which means:</p>
|
||
<ul class="simple">
|
||
<li><p>The first 4 GPUs are allocated to SGLang for inference with:</p>
|
||
<ul>
|
||
<li><p>2-way tensor parallelism</p></li>
|
||
<li><p>2-way data parallelism</p></li>
|
||
</ul>
|
||
</li>
|
||
<li><p>The remaining GPUs are allocated for training with 4-way tensor parallelism</p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="parallelism-strategies">
|
||
<h2>Parallelism Strategies<a class="headerlink" href="#parallelism-strategies" title="Link to this heading">#</a></h2>
|
||
<section id="training">
|
||
<h3>Training<a class="headerlink" href="#training" title="Link to this heading">#</a></h3>
|
||
<p>AReaL supports three parallelism strategies for dense models, similar to Megatron:</p>
|
||
<ul class="simple">
|
||
<li><p>Data Parallelism: Uses Megatron’s DistributedDataParallel with AReaL’s balanced DP partitioning algorithm (<code class="docutils literal notranslate"><span class="pre">SequenceSample.split</span></code>)</p></li>
|
||
<li><p>Tensor Parallelism: Fully replicates Megatron’s <code class="docutils literal notranslate"><span class="pre">ColumnParallelLinear</span></code> and <code class="docutils literal notranslate"><span class="pre">RowParallelLinear</span></code></p></li>
|
||
<li><p>Pipeline Parallelism: Developed in-house with 1F1B scheduling (planned to be replaced with an open-source implementation due to maintenance challenges)</p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="inference">
|
||
<h3>Inference<a class="headerlink" href="#inference" title="Link to this heading">#</a></h3>
|
||
<p>AReaL supports SGLang inference with intra-node tensor parallelism and customized data parallelism.</p>
|
||
</section>
|
||
<section id="parameter-partitioning">
|
||
<h3>Parameter Partitioning<a class="headerlink" href="#parameter-partitioning" title="Link to this heading">#</a></h3>
|
||
<p>Each model worker holds multiple model shards based on the allocation configuration.</p>
|
||
<p>Example: With 4 GPUs configured as:</p>
|
||
<ul class="simple">
|
||
<li><p>Actor model: First half GPUs with tensor parallelism</p></li>
|
||
<li><p>Critic model: Second half GPUs with pipeline parallelism</p></li>
|
||
<li><p>Reference model: All GPUs with tensor and pipeline parallelism</p></li>
|
||
</ul>
|
||
<p>The parameter distribution would be:</p>
|
||
<p><img alt="" src="../_images/param_shard.png" /></p>
|
||
</section>
|
||
</section>
|
||
<section id="torch-nccl-communication-groups">
|
||
<h2>Torch NCCL Communication Groups<a class="headerlink" href="#torch-nccl-communication-groups" title="Link to this heading">#</a></h2>
|
||
<p>During experiments, the following NCCL communication groups are created:</p>
|
||
<ol class="arabic simple">
|
||
<li><p>Global group: Includes all experiment GPUs (created in <code class="docutils literal notranslate"><span class="pre">global_comm.py</span></code>)</p></li>
|
||
<li><p>Parallelism Group: 3D parallel communication groups for a specific model (may match global group or be a subset, created in <code class="docutils literal notranslate"><span class="pre">topology.py</span></code>)</p></li>
|
||
<li><p>Data transfer groups: Groups between all data-parallel processes of any two models for data transfer (created in <code class="docutils literal notranslate"><span class="pre">data_manager.py</span></code>)</p></li>
|
||
</ol>
|
||
</section>
|
||
<section id="parallelism-ranks">
|
||
<h2>Parallelism Ranks<a class="headerlink" href="#parallelism-ranks" title="Link to this heading">#</a></h2>
|
||
<p>Each model worker has a unique GPU index, but may have different parallel strategy coordinates under different model names (actor, critic, etc.).</p>
|
||
<p>Example: GPU 2 might have:</p>
|
||
<ul class="simple">
|
||
<li><p>TP rank 1 for actor model</p></li>
|
||
<li><p>TP rank 0 for reference model</p></li>
|
||
</ul>
|
||
<p>Parallel strategy coordinates are maintained in <code class="docutils literal notranslate"><span class="pre">realhf.base.constants</span></code> and accessed via:</p>
|
||
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>with<span class="w"> </span>constants.model_scope<span class="o">(</span>ModelName<span class="o">(</span><span class="s2">"actor"</span>,<span class="w"> </span><span class="m">0</span><span class="o">))</span>:
|
||
<span class="w"> </span><span class="nv">dp_rank1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span>constants.data_parallel_rank<span class="o">()</span>
|
||
with<span class="w"> </span>constants.model_scope<span class="o">(</span>ModelName<span class="o">(</span><span class="s2">"ref"</span>,<span class="w"> </span><span class="m">0</span><span class="o">))</span>:
|
||
<span class="w"> </span><span class="nv">dp_rank2</span><span class="w"> </span><span class="o">=</span><span class="w"> </span>constants.data_parallel_rank<span class="o">()</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>Note: Interface and backend methods are automatically called within a model scope, so the context manager can be omitted in those implementations.</p>
|
||
</section>
|
||
</section>
|
||
|
||
<script type="text/x-thebe-config">
|
||
{
|
||
requestKernel: true,
|
||
binderOptions: {
|
||
repo: "binder-examples/jupyter-stacks-datascience",
|
||
ref: "master",
|
||
},
|
||
codeMirrorConfig: {
|
||
theme: "abcdef",
|
||
mode: "python"
|
||
},
|
||
kernelOptions: {
|
||
name: "python3",
|
||
path: "./developer"
|
||
},
|
||
predefinedOutput: true
|
||
}
|
||
</script>
|
||
<script>kernelName = 'python3'</script>
|
||
|
||
</article>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<footer class="prev-next-footer d-print-none">
|
||
|
||
<div class="prev-next-area">
|
||
<a class="left-prev"
|
||
href="algo_interface.html"
|
||
title="previous page">
|
||
<i class="fa-solid fa-angle-left"></i>
|
||
<div class="prev-next-info">
|
||
<p class="prev-next-subtitle">previous</p>
|
||
<p class="prev-next-title">Algorithm, Interface & Backends</p>
|
||
</div>
|
||
</a>
|
||
<a class="right-next"
|
||
href="../contrib.html"
|
||
title="next page">
|
||
<div class="prev-next-info">
|
||
<p class="prev-next-subtitle">next</p>
|
||
<p class="prev-next-title">Contribution Guide</p>
|
||
</div>
|
||
<i class="fa-solid fa-angle-right"></i>
|
||
</a>
|
||
</div>
|
||
</footer>
|
||
|
||
</div>
|
||
|
||
|
||
|
||
<div class="bd-sidebar-secondary bd-toc"><div class="sidebar-secondary-items sidebar-secondary__inner">
|
||
|
||
|
||
<div class="sidebar-secondary-item">
|
||
<div class="page-toc tocsection onthispage">
|
||
<i class="fa-solid fa-list"></i> Contents
|
||
</div>
|
||
<nav class="bd-toc-nav page-toc">
|
||
<ul class="visible nav section-nav flex-column">
|
||
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#gpu-allocation">GPU Allocation</a></li>
|
||
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#parallelism-strategies">Parallelism Strategies</a><ul class="nav section-nav flex-column">
|
||
<li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#training">Training</a></li>
|
||
<li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#inference">Inference</a></li>
|
||
<li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#parameter-partitioning">Parameter Partitioning</a></li>
|
||
</ul>
|
||
</li>
|
||
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#torch-nccl-communication-groups">Torch NCCL Communication Groups</a></li>
|
||
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#parallelism-ranks">Parallelism Ranks</a></li>
|
||
</ul>
|
||
</nav></div>
|
||
|
||
</div></div>
|
||
|
||
|
||
</div>
|
||
<footer class="bd-footer-content">
|
||
|
||
<div class="bd-footer-content__inner container">
|
||
|
||
<div class="footer-item">
|
||
|
||
<p class="component-author">
|
||
By Wei Fu
|
||
</p>
|
||
|
||
</div>
|
||
|
||
<div class="footer-item">
|
||
|
||
|
||
<p class="copyright">
|
||
|
||
© Copyright 2023.
|
||
<br/>
|
||
|
||
</p>
|
||
|
||
</div>
|
||
|
||
<div class="footer-item">
|
||
|
||
</div>
|
||
|
||
<div class="footer-item">
|
||
|
||
</div>
|
||
|
||
</div>
|
||
</footer>
|
||
|
||
|
||
</main>
|
||
</div>
|
||
</div>
|
||
|
||
<!-- Scripts loaded after <body> so the DOM is not blocked -->
|
||
<script src="../_static/scripts/bootstrap.js?digest=dfe6caa3a7d634c4db9b"></script>
|
||
<script src="../_static/scripts/pydata-sphinx-theme.js?digest=dfe6caa3a7d634c4db9b"></script>
|
||
|
||
<footer class="bd-footer">
|
||
</footer>
|
||
</body>
|
||
</html> |